* {
    box-sizing: border-box;
}

body {
  font-family: 'Roboto Mono', monospace;
}

h1 {
  margin: 20px;
  text-align: center;
  font-size: 18px;
}

.container {
  height: 300px;
  width: 600px;
  background-color: whitesmoke;
  display: flex;
  flex-wrap: wrap;
  margin: auto;
}

.left,
.center,
.right {
  min-height: 75px;
  width: 200px;
  margin: 2px;
  background-color: dodgerblue;
  border: 2px solid lightgrey;
  align-content: stretch;
}

#flexstart {
  align-content: flex-start;
}

#flexend {
  align-content: flex-end;
}

#center {
  align-content: center;
}

#between {
  align-content: space-between;
}

#around {
  align-content: space-around;
}
